Selective breeding (also called artificial selection) is the process by which
humans use animal .... As more and more farmers followed his lead, farm animals
increased dramatically in size and quality. In 1700, the average weight of a bull
sold for ...

Selective breeding is a process where we choose the characteristics we want in
... over many generations, each time selecting and breeding together those
animals ... Farmers have used selective breeding for centuries to increase milk
yield in ...